<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Document</title>
  <link rel="stylesheet" href="./css/index.css" />
</head>

<body>
  <div class="container">
    <ul class="top">
      <!-- 基础模板 -->
      <!-- <li>
          <a href="javascript:;">首页</a>
          <ul class="sub">
            <li>
              <a href="javascript:;">
                <span>砂锅厨具</span>
                <img src="https://yanxuan.nosdn.127.net/3102b963e7a3c74b9d2ae90e4380da65.png?quality=95&imageView" alt="">
              </a>
            </li>
          </ul>
        </li> -->
    </ul>
  </div>
  <script src="./axios.js"></script>
  <script>
    window.addEventListener('load', function () {
      axios({
        url: 'http://ajax-api.itheima.net/api/category/top',
      }).then((res) => {
        // console.log(res);
        const a = res.data.data
        const arr = a.map((item) => {
          return axios({
            url: 'http://ajax-api.itheima.net/api/category/sub',
            params: {
              id: item.id,
            },
          })
        })

        Promise.all(arr).then((res1) => { //九次请求发送成功后执行后面的
          console.log(res1);
          const str = res1.map((item1) => {
            return `<li>
          <a href="javascript:;">${item1.data.data.name}</a>
          <ul class="sub">
          ${item1.data.data.children.map((item2)=>{
            return` <li>
                        <a href="javascript:;">
                          <span>${item2.name}</span>
                          <img src='${item2.picture}' alt="">
                        </a>
                      </li>
                    `
          }).join('')
          }
           
          </ul>
        </li>`
          }).join('')
          document.querySelector('.top').innerHTML = str
        })
      })
    })
  </script>
</body>

</html>